Forum: Troubleshooting and Beginner Help
02-27-2019, 10:55 PM
|
|
First two taken from about 1 meter, refocused to infinity between shots, next two taken from about 60 meters, refocused to a close object between shots.
1) f2.4, focused on a lock in a middle of a frame
2) f4.5, focused on the same point of a frame
3) f2.4, focused on a middle of a frame
4) f5.6, alo focused on a middle of a frame
|
Forum: Troubleshooting and Beginner Help
02-27-2019, 10:31 AM
|
|
Nope. It was safe in the box in a storage place. ---------- Post added 02-27-19 at 10:47 AM ----------
On my laptop' screen in original size (no magnification)
I went out today to take some pics and there was something wrong in my opinion. So I took a pics at f2.4 and then, from the same place the second one stopped down and noticed FF. I will attach these pics later on or tomorrow. ---------- Post added 02-27-19 at 10:52 AM ----------
Of course yes but I am using a ruler instead of test chart.
8 out of 10 is in focus at f2.4 but it is getting worse when stopped down.
|
Forum: Troubleshooting and Beginner Help
02-27-2019, 07:41 AM
|
|
Hi folks,
I have SMC Pentax-DA 35mm F2.4 AL for a while but it was almost not used. Now i decided to use it as a daily AF prime lens so I had to adjust AF. The lens had a huge BF so the adjustment was set to +10 and everything seemed to be ok. It was adjusted on f2.4, generally according to the procedure. The lens is a bit soft wide open but it is quite normal I suppose.
The magic begins when I close it to lets say f4.5. Pictures are definitely out of focus and, after a quick check, the lens has quite huge FF. The more I close the worst FF occures. If I adjust AF on f4.5 and open it to f2.4 than the BF is present. It happens on this lens only and, using the LV, pics are tack sharp thruout the whole frame.
What it may be and what to do with it?
Hope someone could help
Nobody
|
Forum: Monthly Photo Contests
02-10-2019, 09:03 AM
|
|
I would like to nominate this photo
|
Forum: Monthly Photo Contests
02-02-2019, 09:25 AM
|
|
A plane gold plated by sunset.
|
Forum: Pentax SLR Lens Discussion
01-10-2019, 10:38 AM
|
|
On one particular lens, I agree. But what if the lens is 50mm BUT is specifically designed for APS-C camera. Will FOV differ in comparison to FF lens on FF camera?
|
Forum: Pentax SLR Lens Discussion
01-10-2019, 07:18 AM
|
|
Is the FOV of lens specifficaly designed for APS-C camera the same as lens designed for FF? For example is FOV of SMC Pentax-DA* 55mm F1.4 SDM on APS-C the same as HD Pentax-D FA* 50mm F1.4 SDM AW on FF?
|
Forum: Pentax SLR Lens Discussion
12-25-2018, 06:05 AM
|
|
As far as I know Tamron is varifocal lens too. At least my copy is. If you have zoom lens I think, the best way to adjust AF issues is to adjust it on a longer "side" of the lens, in this particular case 50mm. It is due to DOF which is shallower on 50mm than on 17mm (comparing the same Fstop). That means the DOF on 17mm is deeper than on 50mm so possibility of taking sharp images on 17mm is higher even the focus issues are not properly adjusted.
|
Forum: Weekly Photo Challenges
12-22-2018, 07:25 AM
|
|
Congrats to all. Great pictures!
|
Forum: Weekly Photo Challenges
12-22-2018, 12:19 AM
|
|
Noel, certainly yes. yīnyáng, ("dark-bright", "negative-positive") describes how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent in the natural world, and how they may give rise to each other as they interrelate to one another. (Source: wikipedia). The man and his shadow is on a bright while white dog is on the dark. Yin Yang. :)
It is a leash only. Or lash...
|
Forum: Weekly Photo Challenges
12-15-2018, 08:26 AM
|
|
Jing yang street style. Almost jing yang
|
Forum: Monthly Photo Contests
11-30-2018, 12:44 AM
|
|
taken in Warszawa on a bank of Wisła river.
|
Forum: Weekly Photo Challenges
11-28-2018, 11:34 PM
|
|
Gee, what have you done with Exif data that it shows you took the picture using Nikon D5000?! :)
|
Forum: Weekly Photo Challenges
11-27-2018, 11:07 AM
|
|
Yes, this shop mannequin looks quite extraterrestial... Thanks for your opinion.
|
Forum: Weekly Photo Challenges
11-27-2018, 08:42 AM
|
|
Streets of Warszawa, Poland.
|
Forum: Weekly Photo Challenges
11-27-2018, 08:40 AM
|
|
Congrats to the winner and, as usually all HM's and all participants. Great shots!
|
Forum: Weekly Photo Challenges
11-26-2018, 08:05 AM
|
|
Let me introduce Pink, a 8 weeks old kitten :)
|
Forum: Monthly Photo Contests
10-29-2018, 10:16 AM
|
|
|
Forum: Weekly Photo Challenges
10-11-2018, 11:12 AM
|
|
Guess what's reflection? :)
|
Forum: Monthly Photo Contests
10-07-2018, 07:41 PM
|
|
I would like to nominate this photo
|
Forum: Weekly Photo Challenges
09-25-2018, 10:04 PM
|
|
Congrats to Charliezap, Bruce Clark, Aaacb! Also to HM's Fs999 and Atupdate and Noelcmn. Good job as usually.
|
Forum: Weekly Photo Challenges
09-24-2018, 09:27 PM
|
|
Night escape of criminals :)
|
Forum: Post Your Photos!
09-17-2018, 07:56 AM
|
|
With Boeing 787-8 Dreamliner. Warszawa Airport EPWA
|
Forum: Weekly Photo Challenges
09-17-2018, 07:48 AM
|
|
Congrats to the winners and all participants. Great pics as usuall.
|
Forum: Weekly Photo Challenges
09-17-2018, 07:45 AM
|
|
Just street and a machine :)
|